Hello. I've really enjoyed playing Hotline Miami and have now completed the story. I decided to go back and try and hunt some achievements but noticed that none of them had unlocked. Even achievements I know I have performed in game (such as x4 and x8 combos) do not unlock on Steam. Literally nothing has unlocked in 6 hours of playtime.

I've tried uninstalling and reinstalling the game but without any luck.